Title:
OFF-AXIS MODE SCRAMBLER
Document Type and Number:
WIPO Patent Application WO2003089962
Kind Code:
A3
Abstract:
An apparatus and method for generating a mode-scrambled optical signal (10). A laser beam (12) directs an optical signal (14) into a free end (22) of a first segment of multimode fiber comprising a graded-index (GI) fiber core (16) at an offset from the centerline of the core, generating an offset-launch condition. The first segment of multimode fiber is operatively coupled into a second segment of multimode fiber comprising a step-index (SI) fiber core (18). As the offset-launched optical signal passes through the first and second segments of multimode fiber, the optical signal is converted into a mode-scrambled optical signal (24) having a substantially-filled numerical aperture.
Inventors:
WEY JUN SHAN
PIERCE ROBERT M
EISENBERG ERIC C
WYER JORAH R
PIERCE ROBERT M
EISENBERG ERIC C
WYER JORAH R
Application Number:
PCT/US2003/012251
Publication Date:
December 31, 2003
Filing Date:
April 22, 2003
Export Citation:
Assignee:
TERABEAM CORP (US)
International Classes:
G02B6/14; G02B6/42; (IPC1-7): G02B6/42
Foreign References:
| US6304695B1 | 2001-10-16 | |||
| US4307934A | 1981-12-29 | |||
| US4575181A | 1986-03-11 |
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